created a build with the initial code

I'll just keep the most recently built version in the repository, for
convenience. That way it can be run by directly opening the zip from
github and double clicking the .love file.
reorganized the directories and whatnot in the repo

I think the way I organized things is a little bit better. (Rather than
having things in a flat folder structure.

res = resources (data or other non-code stuff)
mgr = the various manager objects
class = intended for generalized classes of objects -- things that will
be extended to more specific versions
lib = contains the external libraries that we didn't write.
modified keyboard management to be easier

also made the keyboard manager accept a table where any keys defines for
the table will be bound with that same callback. That makes it easier to
bind multiple keys to the same function.
Create ImgMgr as a single place to load, unload and draw images

This class really doesn't do much of anything fancy.. at least not yet.
I hope that at some point it can encapsulate some of the functionality
that will be necessary when we want to animate stuff.